Abstract:

Through field experiments to study the amount of broadcast sowing ‘Luomai 22’ main characters and yield formation. The results showed that: acres of panicles, grain number showing a decreasing trend, sowing were slightly increased acres into a spike upward trend, the number of grains per spike and grain weight of the impact were small, the highest grain yield in for 3, delayed sowing decreased yield, sowing the impact was small. The effective tiller number, effective tiller rate to decrease with delayed sowing the trend showed that, sowing would help improve the effective tillers, seed rate with delayed sowing date tended to decrease with treatment 1 and treatment 3 broadcast the best period of strong, solid rate of 83.9% and 80.1%, for 5 sowing seed set lower than the 17.5% for 1, indicated that the later sowing seed the worse, so sowing than in late sowing would help improve the firm rate. The suitable for sowing period ‘Luomai 22’ October 5th, appropriate seeding rate for 90 kg/hm2 to 120 kg/hm2.